It's unlikely features that we'll see in Planet Zoo come to Planet Coaster. It's a different/improved iteration of our Cobra engine and we've learned so much technology-wise with our previous games, so Planet Zoo certainly benefits from all that knowledge. However, making retroactive changes is not likely at all.
On the internet.Where can I find pictures of these rides? I just want them to make a few more ride packs for Planet Coaster to flesh out the rides. I would love a jeep ride, and a different style of train, maybe one with forward facing seats with open sides that is more common in parks. A kiddie ride pack. Some more rides from RCT3 like Thunder Bobs, the G ride that I mentioned 100 times, maybe a Sky Swing and Slingshot. Would mini golf be possible? A giant Ferris wheel like the RCT3 or RCTW one. The existing giant wheels are different. A giant splash flume with steep drops. A dinghy slide like RCT to sort of make working water slides. In RCT2 people made fake water parks with dinghy slides and fake swimming pools although there was a custom ride where the peeps would swim in the water.